Surface water coupled ice energy tower heat pump system

Abstract

The application relates to the technical field of temperature regulation, and particularly discloses a ground surface water coupled ice energy tower heat pump system. The ground surface water coupled ice energy tower heat pump system comprises an ice crumb heat pump unit and an ice energy heat source tower. The ice crumb heat pump unit comprises an ice spike evaporator, the ice spike evaporator comprises an ice water side shell pipe body and a working medium pipeline unit, a cavity is arranged in the ice water side shell pipe body, a cold water inlet and an ice water outlet are arranged in the side wall of the ice water side shell pipe body, and the working medium pipeline unit comprises an electrolytic layer ice spike pipe which is arranged in the cavity. The ice energy heat source tower comprises an ice water self-sprinkler and a support bottom disc water tank, the ice water self-sprinkler is arranged above the support bottom disc water tank, the ice water self-sprinkler comprises a plurality of self-sprinkling openings, and the support bottom disc water tank is communicated with the cold water inlet. The ground surface water coupled ice energy tower heat pump system can improve the utilization rate of low temperature energy.

Description

Technical Field

[0001] This invention relates to the field of temperature regulation technology, and specifically to a surface water coupled ice replenishment tower heat pump system. Background Technology

[0002] As living standards continue to improve, people's demand for heating in winter and cooling in summer is constantly increasing. Taking heating as an example, traditional heating mainly relies on fossil fuels such as coal and natural gas. When coal and natural gas are burned, a large amount of black carbon and carbon dioxide are emitted. Carbon dioxide releases carbonate ions and hydrogen ions into water vapor, which are condensation nuclei. This leads to mild winter weather and excessive water vapor, affecting the diffusion of carbon particles into the atmosphere and forming smog. This results in a decrease in environmental quality and affects human health.

[0003] Later, as people's requirements for ecological environment and green and low-carbon development increased, heat pumps emerged. They adopt a low-carbon and environmentally friendly heating method that combines the absorption of low-temperature potential energy with a low-heat source heat pump. In winter, they efficiently absorb the water vapor energy of smog by using the phase change of cold water solution with a small temperature difference for heat transfer. In summer, they have high negative pressure evaporation, low water temperature cooling, and long-lasting cooling of waste heat from air conditioning. Therefore, in winter, there is no need to rely on fossil energy such as coal and natural gas, thereby reducing the emission of black carbon and carbon dioxide. In summer, the power consumption will also be reduced. Reduced energy consumption is also beneficial to environmental protection.

[0004] A heat pump includes an evaporator for heat exchange. Current evaporators contain pipes through which a working fluid, a low-temperature solution, flows. Another solution is located outside the pipes. Using heating as an example, heat from the other solution is transferred to the working fluid, raising its temperature and thus utilizing the heat. However, current heat pumps typically only utilize the low-temperature potential energy in liquids, resulting in a relatively singular energy source and a relatively low utilization rate of external low-temperature potential energy. Summary of the Invention

[0005] The present invention aims to provide a surface water coupled ice replenishment tower heat pump system to improve the utilization rate of low-temperature potential energy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a surface water coupled ice energy tower heat pump system, including an ice chip heat pump unit and an ice energy heat source tower. The ice chip heat pump unit includes an ice spur evaporator, which includes an ice water side shell tube and a working fluid pipeline unit. The ice water side shell tube is provided with a cavity, and the side wall of the ice water side shell tube is provided with a cold water inlet and an ice water outlet. The working fluid pipeline unit includes an electrolytic layer ice spur tube, which is located in the cavity.

[0007] The ice energy heat source tower includes an ice water self-splash device and a support base water tank. The ice water self-splash device is located above the support base water tank and includes several self-splashing ports. The support base water tank is connected to the cold water inlet.

[0008] The beneficial effects of this plan are:

[0009] Taking heating as an example, this solution introduces water from rivers, ditches, or groundwater into the ice chip heat pump unit through a cold water inlet, utilizing its low-temperature potential energy. In addition, the ice water self-splashing device in this solution can discharge external water or ice water flowing from the ice chip heat pump unit through a splashing port. As the water falls into the water tank on the support base, it comes into contact with the air. During this process, the ice water absorbs heat from the air and melts back into cold water. When this cold water re-enters the ice chip heat pump unit through the cold water inlet, its low-temperature potential energy can be utilized. In summary, this solution can also utilize low-temperature potential energy in the air, not just in external water.

[0010] Furthermore, a filter screen is installed between the splash nozzle and the water tank on the bracket base.

[0011] The beneficial effects of this solution are as follows: the filter screen can filter water, preventing large particles in the water or air from falling into the water tank of the support base. At the same time, it can also disperse the water to increase the contact area between the water and the air, so that the heat in the air can be transferred to the water more quickly, improving the speed and effect of heat utilization.

[0012] Furthermore, the filter screen is cylindrical, and a horizontal fan is installed inside the filter screen with the air outlet facing upwards.

[0013] The beneficial effects of this solution are as follows: the horizontal fan can promote airflow around the ice energy heat source tower, causing the gas whose temperature drops due to heat transfer to the water to move away from the ice energy heat source tower, while other gases with higher temperatures move closer to the ice energy heat source tower, further promoting heat exchange between air and water and improving heat utilization efficiency.

[0014] Furthermore, a V-shaped demister is provided on the inner side of the middle frame, and the V-shaped demister is located below the horizontal fan.

[0015] The beneficial effects of this solution are: the V-type demister can remove water droplets from the upward airflow, thereby preventing excessive water droplets from contacting the horizontal fan and causing corrosion or damage to the horizontal fan.

[0016] Furthermore, several protrusions are fixed on the outer wall of the electrolytic layer ice spike tube.

[0017] The beneficial effects of this scheme are as follows: Compared with the pipes in ordinary evaporation devices, the surface of the electrolytic layer ice spike tube in this scheme has protrusions. When cold water with a lower temperature enters the ice water side shell tube, the contact area between the tube and the cold water is effectively increased. This allows the heat in the cold water to be quickly transferred into the working fluid through the electrolytic layer ice spike tube. During the test, it was found that the temperature and enthalpy of the cold water after passing through the electrolytic layer ice spike tube decreased, becoming subcooled water. This indicates that the heat utilization rate is much higher than that of existing heat pumps. In other words, this scheme effectively improves the heat transfer speed and utilization rate.

[0018] In this scheme, the working fluid in the electrolytic layer ice spike tube absorbs heat and evaporates into an unsaturated gas-liquid mixture. This mixture then enters a gravity liquid separator for gas-liquid separation to remove the saturated working fluid gas. The saturated gas is then boosted by a heat pump compressor into a relatively high-pressure working fluid vapor and transported to a gas storage separator. The second outlet of the gas storage separator is connected to the electrolytic layer ice spike tube. When the ambient temperature decreases or the ice spike evaporator is used for an extended period, resulting in a thick ice layer forming on the outside of the electrolytic layer ice spike tube, the high-pressure working fluid vapor from the gas storage separator can be introduced into the electrolytic layer ice spike tube. This raises the temperature of the sidewall of the electrolytic layer ice spike tube, causing the ice adhering to the outer wall to melt. Therefore, the ice layer on the outer wall of the electrolytic layer ice spike tube can detach from the tube, preventing excessively thick ice layers from preventing the cold water entering the ice-water side shell from contacting the tube. This ensures that the low-temperature potential energy in the cold water can be transferred to the working fluid in the electrolytic layer ice spike tube more quickly and efficiently.

[0019] Furthermore, the ice chip heat pump unit also includes an ice spike evaporator, a gravity liquid separator, a heat pump compressor, a gas storage separator, and a flash expansion device. The gravity liquid separator is provided with a first air inlet, a first air outlet, a first liquid outlet, and a first liquid inlet. The heat pump compressor is provided with an air intake, an air exhaust, and a pressure port. The electrolytic layer ice spike tube is connected to the first air inlet, the first air outlet is connected to the air intake, the first liquid outlet is connected to the end of the electrolytic layer ice spike tube away from the first air inlet, and the first liquid inlet is simultaneously connected to the end of the electrolytic layer ice spike tube away from the first air inlet and the flash expansion device.

[0020] The cooling condenser is equipped with a third air inlet, a second liquid outlet, a hot water return inlet, and a hot water outlet. The gas separator is equipped with a second air inlet, a second air outlet, and an oil drain outlet. The exhaust port is connected to the second air inlet, and the pressure port is also connected to the flash expansion device. The second air outlet is simultaneously connected to the end of the electrolytic layer ice spike tube near the first air inlet and the third air inlet, and a throttling pipe is provided between the second air outlet and the electrolytic layer ice spike tube. The second liquid outlet is connected to the flash expansion device.

[0021] The beneficial effects of this scheme are as follows: In this scheme, the high-pressure working fluid steam in the cooling condenser releases high-temperature potential energy, which can heat the water, thereby forming hot water flowing out from the hot water outlet. At this time, because the temperature of the high-pressure working fluid steam is relatively high, it can better heat the hot water and make the hot water reach a higher temperature, resulting in a better heating effect.

[0022] Furthermore, an energy storage load system is also provided, which includes an off-peak electricity storage tank. The off-peak electricity storage tank is equipped with an off-peak electricity outlet and an off-peak electricity inlet. The off-peak electricity inlet is connected to both the hot water outlet and the chilled water outlet, and the off-peak electricity outlet is connected to the hot water return outlet.

[0023] The beneficial effects of this solution are as follows: taking heating as an example, the hot water heated in the cooling condenser can be stored in the off-peak electricity storage tank. When a large amount of hot water is needed or the heating requirements are higher, it can be exported for use, ensuring that the heating demand can be met.

[0024] Furthermore, a pressure regulating device is installed between the off-peak electricity outlet and the hot water return outlet. The pressure regulating device includes a pressure regulating storage tank and a pressure regulating circulation device. The pressure regulating storage tank is connected to the off-peak electricity outlet, and the two ends of the pressure regulating circulation device are connected to the pressure regulating storage tank and the hot water return outlet, respectively.

[0025] The beneficial effects of this solution are: water can also be stored in the constant pressure storage tank. When too much water flows to the side near the hot water return port at the same time, resulting in excessive water pressure, the excess hot water can be introduced into the constant pressure storage tank for storage, so as to avoid damage to the pipeline due to excessive pressure.

[0026] Furthermore, the energy storage load system includes load heat exchange equipment, which includes interconnected inlet and return water pipes. The return water pipe is connected to a constant pressure circulation device, and the inlet water pipe is connected to a hot water outlet.

[0027] The beneficial effects of this solution are as follows: hot water heated by the cooling condenser can enter the load heat exchange equipment for use. After use, the hot water with a reduced temperature can be reintroduced into the cooling condenser for reheating, thus enabling direct use of the hot water.

[0028] Furthermore, the ice water outlet is connected to the self-splash outlet.

[0029] The beneficial effects of this scheme are as follows: the temperature of the water flowing out of the ice water outlet is lower than that of the outside water, so the temperature difference between the water flowing out of the ice water outlet and the air is greater. When it is necessary to utilize the low-temperature potential energy in the air, the heat in the air can be transferred to the water flowing out of the ice water outlet more quickly, effectively improving the speed of heat utilization. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0031] Figure 2 for Figure 1 Partial sectional view of a horizontal fan (medium-lower type);

[0032] Figure 3 for Figure 1 Schematic diagram of the structure of the ice chip heat pump unit;

[0033] Figure 4 This is a perspective view of the electrolytic layer ice spike tube in Embodiment 2 of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method:

[0036] The reference numerals in the accompanying drawings include: ice spike evaporator LZ, cold water inlet tank Z1, ice water outlet tank Z2, working fluid inlet Z3, working fluid return gas inlet Z4, working fluid separator ZA, working fluid return gas pipe ZB, ice water side shell ZG, electrolytic layer ice spike tube ZK, thermal resistance defroster ZR, ultrasonic transducer ZV, baffle plate ZW, gravity differential working fluid pump LG, suction port G1, discharge port G2, gravity liquid separator LC, first air inlet C1, first air outlet C2, first liquid outlet C3, First liquid inlet C4, Ice chip heat pump unit QL, Heat pump compressor LQ, Suction port Q1, Exhaust port Q2, Pressure port Q3, Gas separator LY, Second air inlet Y1, Second air outlet Y2, Oil outlet Y3, First throttling pipe YY, Cooling condenser LR, Third air inlet R1, Second liquid outlet R2, Hot water return port R3, Hot water outlet R4, Flash expansion device LS, Medium pressure outlet SZ, Return steam control valve CW, Hot melt control valve YW, Secondary throttling valve S P, Second throttling pipe SJ, Gravity solenoid valve SW, Direct expansion solenoid valve SR, First reversing valve group HA, First guide outlet A12, First manifold inlet A13, Second manifold inlet A24, First tee outlet A34, Thermal storage outlet AH, Cold storage outlet AL, Second reversing valve group HB, Third tee outlet B12, First inlet connection point B13, Second inlet connection point B24, Second tee outlet B34, Ice energy heat source tower BN, Filter screen NC, Chilled water self-splashing device NL. Casing N1, Mounting Plate N2, Motor N3, Fan Blade N4, Upper Frame Pneumatic Cover NG, Middle Frame NK, V-Type Demister NV, Horizontal Fan NF, Support Chassis Water Tank NS, Pumping Components VC, Aqueous Solution Circulation Pump VY, Tower Ice Slurry Control Valve WN, Infiltration Channel Ice Slurry Control Valve WV, Energy Storage Load System FR, Off-Peak Electricity Storage Tank FT, Off-Peak Electricity Inlet TA, Off-Peak Electricity Outlet TB, Load Heat Exchange Equipment FW, Constant Pressure Circulation Device FV, Constant Pressure Device VP, Load Control Valve WA.

[0037] Example 1

[0038] Surface water coupled with ice replenishment tower heat pump system, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a pumping component VC, an ice chip heat pump unit QL, and an ice energy heat source tower BN. The pumping component VC is a water pump, and its inlet is connected to external water sources such as rivers, ditches, or groundwater via a pipe. The ice energy heat source tower BN includes, from top to bottom, an ice-water self-splashing device NL, an upper frame wind-driven cover plate NG, a filter screen NC, and a support base water tank NS. The filter screen NC is cylindrical, and a cylindrical middle frame NK is located inside the filter screen NC. The lower end of the middle frame NK rests on the support base water tank NS. A V-type demister NV and a horizontal fan NF are bolted to the inner circumference of the middle frame NK. The V-type demister NV has a circular cross-section, and the diameter of the lower end of the V-type demister NV is smaller than the diameter of the upper end. The horizontal fan NF is higher than the V-type demister NV. The horizontal fan NF includes a housing N1, a mounting plate N2, fan blades N4, and a motor N3. The mounting plate N2 is welded to the outside of the housing N1. The fan blades N4 are located inside the housing N1 and are lower than the mounting plate N2. A fixing mesh is bolted to the top of the housing N1. The motor N3 is mounted on the fixing mesh, and the output shaft of the motor N3 is connected to the fan blades N4 to drive the fan blades N4 to rotate. In this embodiment, the mounting plate N2 is mounted on the upper frame wind-driven cover plate NG, and the air outlet of the horizontal fan NF faces upward. The chilled water self-splashing device NL is located above the filter screen NC. The chilled water self-splashing device NL includes several nozzles, which face downward, and the water outlet of the nozzles forms a self-splashing port.

[0039] The ice chip heat pump unit QL includes an ice spur evaporator LZ, a gravity liquid separator LC, a heat pump compressor LQ, a gas storage separator LY, a flash expansion device LS, and a gravity differential working fluid pump LG. The ice spur evaporator LZ includes an ice water side shell tube zg and several working fluid piping units. The ice water side shell tube zg has a cavity, and a baffle plate zw is vertically installed in the cavity. The baffle plate zw divides the cavity into a cold water inlet shell Z1 on the left and an ice water outlet shell Z2 on the right. A gap is formed between the baffle plate zw and the inner wall of the ice water side shell tube zg to allow liquid to flow from the cold water inlet shell Z1 into the ice water outlet shell Z2. The left end of the chilled water side shell tube Zg is provided with a chilled water inlet connected to the chilled water inlet shell Z1, and the right end of the chilled water side shell tube Zg is provided with a chilled water outlet connected to the chilled water outlet shell Z2. In actual implementation, both the chilled water inlet and the chilled water outlet are connected to pipes, which are used to introduce chilled water into the chilled water inlet shell Z1 and to discharge chilled water out of the chilled water outlet shell Z2, respectively.

[0040] A thermal resistance defroster zr is installed inside the cavity. The thermal resistance defroster zr passes laterally through the baffle plate zw and is used to defrost the liquid in the cold water inlet tank Z1 and the ice water outlet tank Z2 on the right side after they have completely frozen. An ultrasonic transducer zv is installed on the top of the cold water inlet tank Z1. Specifically, in this embodiment, both the thermal resistance defroster zr and the ultrasonic transducer zv are existing devices, and their structure and installation method are the same as those in the prior art. They will not be described again in this embodiment.

[0041] Several working fluid piping units are distributed sequentially from front to back. Taking one working fluid unit as an example, the working fluid unit includes a working fluid return pipe zb, a working fluid distribution pipe za, and multiple electrolytic layer ice spike pipes zk. The working fluid return pipe zb and the working fluid distribution pipe za are located in the cold water inlet shell Z1 and the ice water outlet shell Z2, respectively. The multiple electrolytic layer ice spike pipes zk are distributed sequentially from top to bottom, with the left end of each of the multiple electrolytic layer ice spike pipes zk connected to the working fluid return pipe zb, and the right end passing through the baffle plate zw and connecting to the working fluid distribution pipe za. All the working fluid return pipes zb are connected, and the upper end of one of the working fluid return pipes zb passes through the top of the cold water inlet shell Z1 to form a working fluid return port; all the working fluid distribution pipes za are connected, and the lower end of one of the working fluid distribution pipes za passes through the bottom of the ice water outlet shell Z2 to form a working fluid inlet.

[0042] The gravity liquid separator LC is provided with a first air inlet C1, a first air outlet C2, a first liquid outlet C3, and a first liquid inlet C4. The first air inlet C1 is connected to the working fluid return air port, and a return steam control valve CW is provided between the first air inlet C1 and the working fluid return air port. The first liquid outlet C3 is connected to the working fluid distribution port. The gravity differential working fluid pump LG is located between the first liquid outlet C3 and the working fluid distribution port. Specifically, the gravity differential working fluid pump LG includes an inlet G1 and an outlet G2. The first liquid outlet C3 is connected to the inlet G1, and the working fluid distribution port is connected to the outlet G2.

[0043] The heat pump compressor LQ is equipped with an intake port Q1, an exhaust port Q2, and a pressure port Q3. The first exhaust port C2 is connected to the intake port Q1. The gas separator LY is equipped with a second intake port Y1, a second exhaust port Y2, and an oil drain port Y3. The exhaust port Q2 is connected to the second intake port Y1, and the oil drain port Y3 is connected to the intake port Q1. A first throttling pipe YY is provided between the oil drain port Y3 and the intake port Q1. The cooling condenser LR is equipped with a third intake port R1, a second liquid outlet R2, a hot water return port R3, and a hot water outlet R4. The hot water return port R3 is used to introduce hot water into the cooling condenser LR, and the hot water outlet R4 is used to discharge the heated hot water. The working fluid return port and the third intake port R1 are connected to the second exhaust port Y2 through a three-way pipe. A thermoelectric control valve YW is also provided between the working fluid return port and the second exhaust port Y2.

[0044] The second liquid outlet R2 is connected to the flash expansion device LS. Specifically, a second throttling pipe SJ is provided between the second liquid outlet R2 and the flash expansion device LS, connecting the second liquid outlet R2 and the flash expansion device LS through the second throttling pipe SJ. In this embodiment, both throttling pipes are corrugated. The flash expansion device LS is connected to a secondary throttling valve SP. The end of the secondary throttling valve SP away from the flash expansion device LS is connected to the first liquid inlet C4 and the working fluid inlet through a three-way pipe. A gravity-controlled electric valve SW is provided between the secondary throttling valve SP and the first liquid inlet C4, and a direct expansion electric valve SR is provided between the secondary throttling valve SP and the working fluid inlet. The flash expansion device LS is provided with a medium-pressure gas outlet SZ, which is connected to the pressure port Q3.

[0045] The system includes a first reversing valve group HA and a second reversing valve group HB. Both groups consist of two reversing valves, and both valves utilize existing structures. The first reversing valve group HA includes a first manifold inlet A13, a second manifold inlet A24, a first guide outlet A12, a first tee outlet A34, a heat storage outlet AH, and a cold storage outlet AL. The second reversing valve group HB has a first inlet connection point B13, a second inlet connection point B24, a second tee outlet B34, and a third tee outlet B12. The first manifold inlet A13 is connected to the hot water outlet R4, and the second tee outlet B34 is connected to the hot water return outlet R3. The bottom of the support chassis water tank NS is connected to an aqueous solution circulation pump VY. The outlet of the aqueous solution circulation pump VY and the outlet of the pumping component VC are both connected to the manifold inlet connection point B24 through pipes. The third tee outlet B12 is connected to the cold water inlet, the ice water outlet is connected to the second manifold inlet A24, and the first tee outlet A34 is connected to the nozzle. A tower ice slurry control valve WN is installed between the first tee outlet A34 and the nozzle. In actual implementation, the inlet of the tower ice slurry control valve WN is also connected to external water sources such as rivers, ditches, and groundwater through a tee pipe. A seepage channel ice slurry control valve WV is also installed between the tower ice slurry control valve WN and the water source.

[0046] The specific implementation process is as follows:

[0047] Taking heating as an example, initially, water from rivers, ditches, or groundwater is pumped into the system via pump VC. After entering the second reversing valve group HB from the manifold inlet connection point B24, it flows out from the third tee outlet B12 and finally enters the cold water inlet tank Z1 from the cold water inlet, where turbulence is formed. Then, it enters the chilled water outlet tank Z2 from the cold water inlet tank Z1, where turbulence is formed, and finally, it is discharged from the chilled water outlet.

[0048] The working fluid is located within the working fluid distribution pipe ZA, the electrolysis layer ice spike pipe ZK, and the working fluid return pipe ZB. After cold water enters the ice water outlet tank Z2, during the entire flow process, the cold water comes into contact with the electrolysis layer ice spike pipe ZK. The heat in the cold water is transferred to the working fluid within the electrolysis layer ice spike pipe ZK, causing the working fluid to evaporate into an unsaturated gas-liquid mixture, which finally flows out uniformly from the working fluid return port. The cold water temperature decreases, forming subcooled water. Simultaneously with the introduction of cold water, the ultrasonic transducer ZV is activated. Under the action of the ultrasonic transducer ZV, some of the subcooled water forms ice, ultimately forming an ice-water solution.

[0049] Under the action of gravity differential working fluid pump LG and heat pump compressor LQ, the unsaturated gas-liquid mixture working fluid is discharged from the working fluid return port, passes through the return steam control valve CW, and enters the gravity liquid separator LC from the first air inlet C1 for gas-liquid separation to form a working fluid saturated with gas and liquid. Under the action of gravity differential working fluid pump LG, the working fluid enters the working fluid separator za from the working fluid inlet, and finally enters the electrolysis layer ice spike tube zk for heat exchange. The saturated working fluid gas enters the heat pump compressor LQ through the first outlet C2 and the intake Q1. Inside the heat pump compressor LQ, it performs work and is upgraded into high-pressure working fluid vapor. Then, it enters the gas separator LY through the second intake Y1 from the exhaust port Q2 of the heat pump compressor LQ to separate oil droplets from the high-pressure working fluid vapor. After the oil droplets are separated, the high-pressure working fluid vapor enters the pipe inside the cooling condenser LR through the second outlet Y2 and the third intake R1 to release high-temperature potential energy. In actual implementation, the water or gas that needs to be heated enters through the hot water return port R3, is heated by the high-pressure working fluid vapor, and is discharged from the hot water outlet R4 to achieve heating.

[0050] After releasing high-temperature potential energy, the high-pressure working fluid vapor condenses into a high-pressure working fluid liquid. This liquid exits through the second outlet R2 and enters the flash expansion device LS via the second throttling pipe SJ between R2 and SJ. As the high-pressure working fluid passes through SJ, it undergoes a throttling flash evaporation, forming a medium-pressure working fluid liquid and flash vapor. The flash vapor then enters the flash expansion device LS and exits through the medium-pressure outlet SZ. Finally, it enters the heat pump compressor LQ via the pressure port Q3, moving along with the saturated working fluid gas separated by the gravity liquid separator LC.

[0051] This embodiment includes two liquid supply modes: In the first mode, the medium-pressure working fluid enters the electrolytic layer ice spike tube zk through the working fluid inlet via the direct expansion solenoid valve SR, where it exchanges heat with cold water to utilize the low-temperature potential energy from the outside. In the second mode, the medium-pressure working fluid enters the gravity liquid separator LC through the first inlet C4 via the gravity solenoid valve SW, and then enters the working fluid distribution tube za under the action of gravity supply and gravity differential working fluid pump LG. Compared with the first mode, the second mode has a faster working fluid flow rate because the medium-pressure working fluid only enters the working fluid distribution tube za under the action of gravity supply and gravity differential working fluid pump LG. This makes it easier to form turbulence in the working fluid distribution tube za and the electrolytic layer ice spike tube zk, thus ensuring that more working fluid can contact the sidewall of the electrolytic layer ice spike tube zk, thereby improving the efficiency of heat transfer into the working fluid, and simultaneously improving the heat exchange rate and heat utilization rate.

[0052] High-pressure working fluid steam enters the cooling condenser LR and heats the water in LR to form hot water. The hot water enters the first reversing valve group HA from the first manifold inlet A13 and flows out from the first guide outlet A12. The hot water can be used for bathing or as a heat source in heating equipment such as underfloor heating. Then, cold water from the outside is introduced into the second reversing valve group HB through the first inlet connection point B13 and flows out from the second three-way outlet B34. The hot water return port R3 is then reintroduced into the cooling condenser LR to absorb heat from the high-pressure working fluid steam and form hot water.

[0053] When the low-temperature potential energy in the air needs to be utilized, external water or chilled water discharged from the chilled water outlet is sprayed from the nozzle through the tower ice slurry control valve WN. When using chilled water discharged from the chilled water outlet, the chilled water enters the first reversing valve group HA through the second manifold inlet A24, and then flows out from the first three-way outlet A34, flowing through the tower ice slurry control valve WN to the nozzle. The water sprayed from the nozzle passes through the filter screen NC and flows downward into the water tank NS of the support chassis. At the same time, the horizontal fan NF is started, which causes the external air to pass through the filter screen NC and flow upward along the middle frame NK. When the air passes through the filter screen NC, it comes into contact with the water in the filter screen NC, and the heat in the air is transferred to the water, increasing the low-temperature potential energy in the water.

[0054] Water passing through the filter screen NC falls into the water tank NS in the support chassis, and is then guided by the aqueous solution circulation pump VY from the manifold inlet connection point into the second reversing valve group HB. Finally, it is guided from the cold water inlet into the cold water inlet tank Z1. When the low-temperature potential energy in the air is sufficient to meet heating needs, the pumping component VC can be shut off, utilizing only the low-temperature potential energy in the air for heating. That is, when it is necessary to utilize the low-temperature potential energy in the air, the ice energy heat source tower BN can convert the utilization of the low-temperature potential energy in the air into the utilization of the low-temperature potential energy in the water. Therefore, the structure of the ice chip heat pump unit QL, which utilizes low-temperature potential energy, does not need to be changed. In summary, the system using this scheme can utilize the low-temperature potential energy in both air and water.

[0055] When the outside temperature is too low, causing the cold water in the ice-water side shell tube zg to freeze completely, or when the evaporator is shut down and the cold water in the ice-water side shell tube zg is completely frozen, the thermal resistance defroster zr is started first to heat the ice in the ice-water side shell tube zg, causing the ice to melt, thereby ensuring that the evaporator can be restarted and work normally.

[0056] When the ice layer outside the electrolytic layer ice spike tube zk is too thick, preventing the cold water from contacting the outer wall of the electrolytic layer ice spike tube zk, the return steam control valve CW is closed. The high-pressure working fluid steam is then introduced from the working fluid return port into the working fluid return pipe zb via the heat fusion control valve YW, and enters the electrolytic layer ice spike tube zk. This heats the side wall of the electrolytic layer ice spike tube zk, melting the part of the ice layer in contact with the electrolytic layer ice spike tube zk. This allows the ice layer to detach from the outer wall of the electrolytic layer ice spike tube zk and be carried away by the cold water, ensuring that the cold water can contact the outer wall of the electrolytic layer ice spike tube zk, thereby improving the speed and efficiency of heat utilization.

[0057] Example 2

[0058] Based on Example 1, such as Figure 4 As shown, the surface of the electrolytic layer ice lance tube zk in this embodiment is integrally formed with several protrusions. All the protrusions are divided into several protrusion groups, and the protrusion groups are distributed sequentially along the axial direction of the electrolytic layer ice lance tube zk, with the protrusions in adjacent protrusion groups being staggered. The cross-section of the protrusion is rhomboid, and the cross-sectional area of ​​the end of the protrusion away from the electrolytic layer ice lance tube zk is smaller than the cross-sectional area of ​​the end of the protrusion near the electrolytic layer ice lance tube zk, so that gaps are formed between adjacent protrusions for the flow of cold water and ice water. The inner wall of the electrolytic layer ice lance tube zk is provided with several convex ridges along the circumference. In this embodiment, the convex ridges are spiral-shaped. In actual implementation, the convex ridges can also extend along the axial direction of the electrolytic layer ice lance tube zk. The convex ridges can block the flow of the working fluid, thereby promoting turbulence in the working fluid during the flow process, further promoting different working fluids to contact the sidewall of the electrolytic layer ice lance tube zk, and directly exchanging heat with the sidewall of the electrolytic layer ice lance tube zk, thereby improving the heat exchange rate.

[0059] In this scheme, when the electrolytic layer ice spike tube zk is in use, the temperature of the cold water decreases, and ice nuclei form at the tips of the protrusions far away from the tip of the electrolytic layer ice spike tube zk. As time goes on, the ice nuclei crystals grow and form vertical ice spikes on the outer wall of the electrolytic layer ice spike tube zk. When the length of the ice spikes increases, they break under the action of turbulence and can flow with the supercooled water, so that the cold water eventually forms an ice water solution. When the ice water enters the ice energy heat source tower BN, because the temperature of the ice water is even lower and the temperature difference between it and the air is greater, the heat in the air can be transferred to the ice water more quickly. Moreover, the ice water needs to absorb more heat to raise its temperature. Therefore, the ice water can transfer heat from the air more quickly and efficiently.

[0060] Example 3

[0061] Based on Example 1 or Example 2, such as Figure 5 As shown, this embodiment also includes an energy storage load system FR, which includes a valley electricity storage tank FT and a load heat exchange device FW. The valley electricity storage tank FT is equipped with a valley electricity outlet TB and a valley electricity inlet TA. The valley electricity outlet TB is connected to a constant pressure device VP, which includes a constant pressure storage tank and a constant pressure circulation device FV. In this embodiment, the constant pressure circulation device FV is a water pump. The inlet of the constant pressure circulation device FV is connected to the valley electricity outlet TB, and the pipe between the constant pressure circulation device FV and the valley electricity outlet TB is also connected to the constant pressure storage tank. The outlet of the constant pressure circulation device is connected to the first inlet connection point B13, and the second three-way outlet B34 is connected to the hot water return port R3, so that after the hot water passes through the second reversing valve group HB, it enters the cooling condenser LR from the second three-way outlet B34 through the hot water return port R3. The off-peak electricity inlet TA is connected to the heat storage outlet AH, so that the hot water heated in the cooling condenser LR passes through the first reversing valve group HA and then enters the off-peak electricity storage tank FT through the off-peak electricity inlet TA for storage.

[0062] In this embodiment, the load heat exchanger FW is also connected to the off-peak electricity outlet TB via a pipeline. In actual implementation, the load heat exchanger FW can be used for underfloor heating, air conditioning, or other devices that can provide heating through hot water, or for devices that directly utilize hot water, such as bathing facilities. When the load heat exchanger FW is used for heating through hot water, it is connected to the inlet of the constant pressure circulation device FV via a pipeline. When the load heat exchanger FW is used for directly utilizing hot water, a pipeline connected to the constant pressure circulation device FV is also provided to introduce cold water such as tap water, groundwater, or water from rivers and ditches into the cooling condenser LR to continuously generate hot water. In actual implementation, the first guide outlet A12 can also be directly connected to the load heat exchanger FW via a pipeline. In this case, the hot water generated by the cooling condenser LR can be directly introduced into the load heat exchanger FW through the first guide outlet A12 via this pipeline for use, without having to pass through the off-peak electricity storage tank FT. This reduces the number of pipelines through which the hot water flows, avoids heat loss during the flow of hot water, and further improves the heat utilization rate.

[0063] In this embodiment, when the amount of hot water generated per unit time is too large to be completely used up, the hot water entering the first reversing valve group HA enters the off-peak electricity storage tank FT through AH for storage. When the amount of hot water generated per unit time is small, the hot water stored in the off-peak electricity storage tank FT is guided to the load heat exchange equipment FW for use through the load control valve WA.

[0064] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A surface water coupled ice replenishment tower heat pump system, characterized in that: The system includes an ice chip heat pump unit and an ice energy heat source tower. The ice chip heat pump unit includes an ice spike evaporator, which includes an ice water side shell tube and a working fluid piping unit. The ice water side shell tube has a cavity, and the side wall of the ice water side shell tube has a cold water inlet and an ice water outlet. The working fluid piping unit includes an electrolytic layer ice spike tube, which is located in the cavity. The outer wall of the electrolytic layer ice spike tube has several protrusions fixed on it. The cross-section of the protrusions is rhomboid, and the cross-sectional area of ​​the end of the protrusion away from the electrolytic layer ice spike tube is smaller than the cross-sectional area of ​​the end of the protrusion closer to the electrolytic layer ice spike tube. The ice energy heat source tower includes an ice water self-splash device and a support base water tank. The ice water self-splash device is located above the support base water tank and includes several self-splashing ports. The support base water tank is connected to a cold water inlet. A baffle plate is fixed inside the chilled water side shell tube, which divides the inner cavity of the chilled water side shell tube into a cold water inlet shell and a chilled water outlet shell. The cold water inlet shell and the chilled water outlet shell are connected. An ultrasonic transducer is installed inside the cold water inlet shell.

2. The surface water coupled ice replenishment tower heat pump system according to claim 1, characterized in that: A filter screen is installed between the splash nozzle and the water tank on the bracket base.

3. The surface water coupled ice replenishment tower heat pump system according to claim 2, characterized in that: The filter screen is cylindrical, and a horizontal fan is installed inside the filter screen with the air outlet facing upward.

4. The surface water coupled ice replenishment tower heat pump system according to claim 3, characterized in that: A V-shaped demister is provided on the inner side of the middle frame, and the V-shaped demister is located below the horizontal fan.

5. The surface water coupled ice replenishment tower heat pump system according to claim 1, characterized in that: The ice chip heat pump unit also includes an ice spike evaporator, a gravity liquid separator, a heat pump compressor, a gas storage separator, and a flash expansion device. The gravity liquid separator is provided with a first air inlet, a first air outlet, a first liquid outlet, and a first liquid inlet. The heat pump compressor is provided with an air intake, an air exhaust, and a pressure port. The electrolytic layer ice spike tube is connected to the first air inlet, the first air outlet is connected to the air intake, the first liquid outlet is connected to the end of the electrolytic layer ice spike tube away from the first air inlet, and the first liquid inlet is simultaneously connected to the end of the electrolytic layer ice spike tube away from the first air inlet and the flash expansion device. The cooling condenser is equipped with a third air inlet, a second liquid outlet, a hot water return inlet, and a hot water outlet. The gas storage separator is equipped with a second air inlet, a second air outlet, and an oil outlet. The exhaust port is connected to the second air inlet, and the pressure port is also connected to the flash expansion device. The second air outlet is simultaneously connected to the end of the electrolytic layer ice spike tube near the first air inlet and the third air inlet, and a throttling pipe is provided between the second air outlet and the electrolytic layer ice spike tube. The second liquid outlet is connected to the flash expansion device.

6. The surface water coupled ice replenishment tower heat pump system according to claim 5, characterized in that: It is also equipped with an energy storage load system, which includes an off-peak electricity storage tank. The off-peak electricity storage tank is equipped with an off-peak electricity outlet and an off-peak electricity inlet. The off-peak electricity inlet is connected to both a hot water outlet and an ice water outlet. The off-peak electricity outlet is connected to a hot water return outlet.

7. The surface water coupled ice replenishment tower heat pump system according to claim 6, characterized in that: A pressure regulating device is installed between the off-peak electricity outlet and the hot water return outlet. The pressure regulating device includes a pressure regulating storage tank and a pressure regulating circulation device. The pressure regulating storage tank is connected to the off-peak electricity outlet, and the two ends of the pressure regulating circulation device are connected to the pressure regulating storage tank and the hot water return outlet, respectively.

8. The surface water coupled ice replenishment tower heat pump system according to claim 7, characterized in that: The energy storage load system includes a load heat exchange device, which includes an inlet water pipe and a return water pipe that are interconnected. The return water pipe is connected to a constant pressure circulation device, and the inlet water pipe is connected to a hot water outlet.

9. The surface water coupled ice replenishment tower heat pump system according to claim 8, characterized in that: The ice water outlet is connected to the self-splash outlet.

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